Boiler-tube cleaner.



G. H. AINGE. BOILBR TUBE CLEANER.

APPLIOATION FILED PEB. 1, 1908.

958,205 Patented May 17, 192110.

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BOILEP. TUBE CLEANER.

APPLICATION FILED FEB. l, 1908.

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ANDREW E. GRAHAM co. PND

G. H. MNGE. Boul-R TUBE GLBANER.

APPLIUATION FILED FEB. l, 1908.

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GEORGE I-I. AINGE, 0F SPRINGFIELD, OHIO, ASSIGNOR TO THE LAGONDA MANUFAC- TURING COMPANY, OF SPRINGFIELD, OI-IIO, A CORPORATION OF OHIO.

BOILER-TUBE CLEANER.

Specification of Letters Patent.

Patented May 1'?, 191W.

To all 'whom it may concern:

Be it known that I, GEORGE I-I. AINGE, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Boiler-Tube Cleaners, of which the followingis a specification, reference being had therein to the accompanying drawings.

My invention relates to tube cleaners and more particularly to cleaners for water tubes of steam boilers.

The object of my invention is to provide an improved cleaner that will be more efficient in operation and with this end in view I have arranged to give the greatest possible length to the cutter carrying arms consistent with operating two of them in the same plane. This increased length of the arms gives them greater force in their hammering and picking action to disintegrate and remove the scale; and by arranging two of them in the same plane, when more than one pair are used, I keep the length of the head within proper limit for eiicient work in bent tubes.

A further object is to simplify the construction making the several parts stronger and more durable and so arranging them in their relation t0 each other that they can be readily removed.

Vith these and other objects in view myv invention consists of the constructions and combinations hereinafter described and set forth in the cla-im.

In the accompanying drawings which form a part of this specification Figure l. is the side elevation of a cleaner head embodying my invention, Fig. 2. is an end view of same with the cutter carrying arms shown at the extreme limit of their outward radial movement, Fig. 3. is same view showing the cutter carrying arms at the extreme limit of their inward radial movement, Figs. 4. and 5. give two views of the cutter carrying arms, Fig. 6. is a side elevation of the support, Fig. 7 is an end view of saine and Figs. 8, 9, 10 and 1l show a modified form of the cleaner, Fig. 8 being the support, Figs. 9 and 10 views of the cutter carrying arms and Fig. 11 the complete head of the modified form.

In the drawings a represents a support having a central post al with two pairs of oppositely extending ears a2 thereon. 'Io each pair of the ears a2 and preferably at the outer ends thereof as shown I pivot on pins b1 extending through perforations in the ears and held in place by cotters b2, a pair of cutter carrying arms b the pivoted ends b3 being reduced in width to fit between the ears to which they are pivoted forming a strong and durable construction. rlthe arms a2 are formed with a projection a3 at their outer ends against which the shoulder b4 on the cutter carrying arms in their outward movement bear forming a stop to limit the movement to the size of the tube in which the head is operated. The head may be formed with a single or a series of pairs of cutter carrying arms in like manner; but I have shown two pairs in the drawings as preferable for general purposes.

It will be seen the respective members of each pair of cutter carrying arms are pivoted on opposite sides of the head and when in their closed position as shown in Fig. 3, extend across the head parallel with each other on opposite sides of the central post and abutting the oppositely extending ears. This particular construction and arrangement of the arms I have found in practice to give very much improved results. In

Fig. 2. the arms are shown at the limit of their outward movement with the shoulder b4 of the arm bearing against the stop a3 of the ears.

I have shown rotary cutters c pivoted within the bifurcated free end of the arms, the front arms also preferably carrying upon their forward sides rotary cutters 01 arranged in cone shape, said cutters being pivoted on pins with heads and cutters on the opposite ends of the pins to hold them in place as shown.

The rear end of the support a is screw threaded as shown to attach the head to the motor shaft but the head may be connected with the motor or driving shaft in any suitable manner.

In Figs. 8, 9, l0 and 11, I have shown a modification in which the cutter carryinof arms 65 are bifurcated at 296 and are pivoted to the ears a4 of the support a5, the ears being pivoted within the bifurcations as shown; and a shoulder 57 formed on the arms contacts With a projection a of the ears to form a stop to limit the radial movement of the arms.

Having thus described my invention, I claim;

A cleaner head comprising a series oi' freely swinging pairs of arms, a support having a cent-ral post With oppositely eX- tending ears formed integrally therewith for each pair of arms, the respective members of each pair of arins being pivoted at one end to the outer ends of the ears, 'each arm and the ear to which it is pivoted being arranged to operate one Within a bifnrcation of the other for a portion of their GEORGE H. AINGE.

Witnesses VM. GUGENHEIM, CARL CASKEY. 

